An aluminium alloy sheet suitable for use as lithographic plate support, wherein the aluminium alloy has the composition (in wt. %): Si 0.05-0.20 preferably 0.06-0.14; Fe 0.15-0.40 preferably at least 0.2; others up to 0.05 each and up to 0.15 total; Al balance, wherein the aluminium alloy sheet is non-grain refined.